oo, Ive researched the Rules, and i pretty sure you cant run those in any classes. But, maybe its for something else. I heard they are hard to tech and lets be real, they not gonna pull heads and do that so....... They answer to your question is YES, they do do Acid Porting. Happy racing

They are legal Many of these heads have spent hours in the tech barn maybe not local races but Johno & Randy Seals both have had them torn apart and they have never been busted with a illegal head.These heads that are on the limited motors are very good.

Racin nut, Pat would prefer that you not answer questions on subjects you know nothing about. His secret to success doesn't derive from a barrel of acid. Doesn't use it, never will. For any legitimate questions feel free to call him any time. Have a nice day. 719 899 2658

I tried the out of the box thing Yea right the valves / springs everything out box is for the birds.Set them down and HAD to get milled down and also have them reworked So the out of the box is not a true statement, now they are better / cheaper heads than stock heads and everything is more true to the way they are supposed to be madeTechnology of 2012 VS what ever year the stock heads were made is just so much differentanyway by a set of EQ out of the box and tell me those are race ready heads cause they arent close.